AC problem

I observed a strange behavior on honda yesterday.

WHen i started the heater i nticed that the hot air is coming frm right side of the vents only and normal air from left.

so went into AC mode i noticed that the cold air is coming from left side of the vents only and normal air from right.
can sometell me whats the issue.

It would be good to know year and model of your vehicle.

I have heard that rodents or other creatures can make nests in your car, blocking or damaging servo vents.

Do have any weird smell? That might the problem.

Another suggestion would be to find your car's repair manual and go from there.

Good luck,
Sam